Question

factorise the following using a suitable identities 12m^2-75​

Answer 1

Answer:

3(2m+5)(2m-5)

Step-by-step explanation:

12m^2-75

=3(4*m^2 - 25)

$(a+b)(a-b) = a^{2} - b^{2}$

$3 ( 4*m^{2} - 5^{2} )\\=3(2m+5)(2m-5)$

Answer 2

Given that: 12m²-75

=3(4m² - 25)  

since, (a+b)(a-b) = a² - b²

3 { ( 2m)² - (5²) }

=3(2m+5)(2m-5)

∴ 12m²-75​=3(2m+5)(2m-5) Ans.